From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <amd-gfx-bounces@lists.freedesktop.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by smtp.lore.kernel.org (Postfix) with ESMTPS id BACC2D35693
	for <amd-gfx@archiver.kernel.org>; Wed, 28 Jan 2026 10:55:01 +0000 (UTC)
Received: from gabe.freedesktop.org (localhost [127.0.0.1])
	by gabe.freedesktop.org (Postfix) with ESMTP id 49BAC10E64B;
	Wed, 28 Jan 2026 10:55:01 +0000 (UTC)
Received: from MTA-08-4.privateemail.com (mta-08-4.privateemail.com
 [198.54.122.147])
 by gabe.freedesktop.org (Postfix) with ESMTPS id F1F7610E5CD;
 Tue, 27 Jan 2026 22:53:34 +0000 (UTC)
Received: from mta-08.privateemail.com (localhost [127.0.0.1])
 by mta-08.privateemail.com (Postfix) with ESMTP id 4f110Y62pcz3hhZG;
 Tue, 27 Jan 2026 17:53:33 -0500 (EST)
Received: from hal-station (unknown [124.198.132.52])
 by mta-08.privateemail.com (Postfix) with ESMTPA;
 Tue, 27 Jan 2026 17:52:59 -0500 (EST)
Date: Tue, 27 Jan 2026 17:52:55 -0500
From: Hamza Mahfooz <someguy@effective-light.com>
To: Alex Deucher <alexdeucher@gmail.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>,
 Timur =?iso-8859-1?Q?Krist=F3f?= <timur.kristof@gmail.com>,
 dri-devel@lists.freedesktop.org,
 Christian =?iso-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>,
 Alex Deucher <alexander.deucher@amd.com>,
 David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
 Harry Wentland <harry.wentland@amd.com>,
 Leo Li <sunpeng.li@amd.com>, Rodrigo Siqueira <siqueira@igalia.com>,
 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
 Maxime Ripard <mripard@kernel.org>,
 Thomas Zimmermann <tzimmermann@suse.de>,
 Sunil Khatri <sunil.khatri@amd.com>, Ce Sun <cesun102@amd.com>,
 Lijo Lazar <lijo.lazar@amd.com>, Kenneth Feng <kenneth.feng@amd.com>,
 Ivan Lipski <ivan.lipski@amd.com>, Alex Hung <alex.hung@amd.com>,
 Tom Chung <chiahsuan.chung@amd.com>, Melissa Wen <mwen@igalia.com>,
 Michel =?iso-8859-1?Q?D=E4nzer?= <mdaenzer@redhat.com>,
 Fangzhi Zuo <Jerry.Zuo@amd.com>, amd-gfx@lists.freedesktop.org,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] drm: introduce page_flip_timeout()
Message-ID: <aXlBx528d11lMJvl@hal-station>
References: <20260123000537.2450496-1-someguy@effective-light.com>
 <2de6d428-b997-4ba8-8766-a211e5612e72@amd.com>
 <2349754.vFx2qVVIhK@timur-hyperion>
 <a8b972be-7265-492f-9855-cdec94a0e0dc@amd.com>
 <aXUQKSJGkz7nzHJ4@hal-station.localdomain>
 <CADnq5_Ob8yiivco+szanSiXuRwdAu4xHMe=8OQSk+Ufqykgobg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CADnq5_Ob8yiivco+szanSiXuRwdAu4xHMe=8OQSk+Ufqykgobg@mail.gmail.com>
X-Virus-Scanned: ClamAV using ClamSMTP
X-Mailman-Approved-At: Wed, 28 Jan 2026 10:55:00 +0000
X-BeenThere: amd-gfx@lists.freedesktop.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Discussion list for AMD gfx <amd-gfx.lists.freedesktop.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/amd-gfx>,
 <mailto:amd-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/amd-gfx>
List-Post: <mailto:amd-gfx@lists.freedesktop.org>
List-Help: <mailto:amd-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/amd-gfx>,
 <mailto:amd-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: amd-gfx-bounces@lists.freedesktop.org
Sender: "amd-gfx" <amd-gfx-bounces@lists.freedesktop.org>

On Mon, Jan 26, 2026 at 09:20:55AM -0500, Alex Deucher wrote:
> I suspect just calling drm_crtc_send_vblank_event() here on the
> relevant crtcs would be enough.
> 

Seems like an interesting idea, though I would imagine we would still
want to attempt a reset (of some kind) assuming that the subsequent page
flip also experiences a timeout.

> Alex